DIAC (Diode for Alternating Current) and SIDAC (Silicon Diode for Alternating Current) are two types of bidirectional conduction devices used in AC circuits. They are both trigger devices that require a trigger voltage to activate and start conducting. DIACs are commonly used to trigger TRIACs in AC circuits, while SIDACs are used to trigger devices such as SCRs.
DIAC and SIDAC Features
- Dual pilot connectivity: Both DIAC and SIDAC are dual pilot devices, capable of conducting forward and reverse currents.
- Trigger characteristics: They are trigger devices that require a trigger voltage to activate and start conduction.
- Application scenario: DIAC and SIDAC are commonly used to trigger additional components, such as thyristors (SCRS) or triacs, to control switching or triggering in AC circuits.
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